Manzano v. Court of Appeals
REITERATIONFacts
The Antecedents: The underlying dispute concerns the patentability of an LPG gas burner. Petitioner Angelita Manzano sought to cancel Letters Patent No. UM-4609, registered in the name of respondent Melecia Madolaria and later assigned to New United Foundry Manufacturing Corporation (UNITED FOUNDRY). Manzano alleged that the utility model was not inventive, new, or useful; that the patent specifications were non-compliant; that Madolaria was not the true inventor; and that the patent was obtained through fraud or misrepresentation. Manzano contended that the utility model had been publicly known or used in the Philippines for over a year before Madolaria's application, and that similar products were in public use or on sale within the same period. Procedural History: Petitioner Angelita Manzano filed a petition for cancellation of Letters Patent No. UM-4609 with the Philippine Patent Office. The Director of Patents, Cesar C. Sandiego, denied the petition in Decision No. 86-56 on July 7, 1986, finding that Manzano's evidence did not convincingly establish that the patented utility model was anticipated by prior art. The Director also noted that the brochures presented as prior art were undated and thus useless as references, and that no evidence of fraud was presented. Manzano appealed this decision to the Court of Appeals, which affirmed the Director of Patents' ruling on October 15, 1993. This affirmation led to the current petition for review on certiorari before the Supreme Court. The Petition: Petitioner Angelita Manzano seeks review of the Court of Appeals' decision via a petition for certiorari. She argues that the Court of Appeals erred in relying on speculative differences between her presented prior art and the patented model, in misapprehending facts, in giving undue weight to the testimony of respondent's sole witness, and in failing to cancel the patent. Manzano specifically contends that the differences cited by the appellate court are illusory and that the brochures and models she presented, despite being undated or lacking certain components, demonstrate prior art that anticipates Madolaria's patent. She further argues that the testimony of her witnesses, Ong Bun Tua and Fidel Francisco, regarding prior importation and use of similar burners, should have been given more weight, and that the testimony of respondent's witness was unreliable. Manzano urges the Supreme Court to take judicial notice of the historical context of the presented evidence, such as telephone number formats and corporate name changes, to establish the prior existence of her cited prior art.
Issue(s)
Whether the Court of Appeals erred in affirming the decision of the Director of Patents denying the petition for cancellation of Letters Patent No. UM-4609; and whether the utility model covered by Letters Patent No. UM-4609 was anticipated by prior art, thus lacking novelty. Whether the patent was secured by fraud or misrepresentation.
Ruling
The petition is denied, and the decision of the Court of Appeals affirming the denial of the petition for cancellation by the Philippine Patent Office is affirmed.
Ratio Decidendi
On the issue of anticipation and novelty: The Court held that the issuance of Letters Patent No. UM-4609 to Melecia Madolaria creates a presumption of novelty and patentability. The burden of proving want of novelty rests heavily on the petitioner and requires clear and satisfactory proof that overcomes every reasonable doubt. The evidence presented by the petitioner, consisting of undated brochures and oral testimony, was found insufficient to overcome this presumption. The Director of Patents correctly noted that the pictorial representations in the brochures were not clearly and convincingly identical or substantially identical to the patented utility model. Furthermore, the undated nature of the brochures rendered them useless as prior art references because their circulation dates prior to the patent application could not be established. The Court also found that the petitioner's own models (Exh. "K" and "L") and burner cup (Exh. "M") lacked definitive dates of manufacture or importation, making it impossible to determine if they constituted prior art. The oral testimony of petitioner's witnesses, particularly Ong Bun Tua, was also found to be uncorroborated and lacking in credibility, especially since he admitted no connection with Manila Gas Corporation and could not present importation papers. On the issue of fraud or misrepresentation: The Court found no evidence whatsoever presented by the petitioner to show that Melecia Madolaria withheld material facts with intent to deceive the Philippine Patent Office. The petitioner's contention that the patent was obtained by fraud was not substantiated by any competent proof. The presumption of correctness and regularity in the official actions of the Patent Office, including the issuance of patents, remains unless overcome by clear and convincing evidence. The petitioner failed to meet this high standard of proof. The Court reiterated that the findings of fact of the Director of Patents, especially when affirmed by the Court of Appeals, are conclusive on the Supreme Court when supported by substantial evidence, and the petitioner failed to show compelling grounds for a reversal.
Main Doctrine
The issuance of a patent creates a presumption of correctness and patentability, which can only be overcome by clear and cogent evidence proving want of novelty. Undated brochures or oral testimony without corroborating evidence are insufficient to overcome this presumption.